Friedrich HĂĽbner, Christoph Dauer, Sebastian Eggert, Corinna Kollath, and Ameneh Sheikhan:
Phys. Rev. A 108, 023307 (2023)
🔓  arXiv:2305.16743 (2023)
We investigate the transport properties of a Fermi-Hubbard chain with an impurity which is formed by a site with a periodically modulated chemical potential. We determine the momentum-resolved transmission through this impurity in dependence of the modulation frequency and strength for a single particle and a pair of fermions. We find that the pair transmission has a very distinct behavior from the single-particle transmission. Different situations can occur, where only the single particle or the pair with a certain momentum is transmitted or filtered out.